M"anything"

cjkim has asked for the wisdom of the Perl Monks concerning the following question:

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Re: M"anything" by japhy (Canon) on Aug 06, 2004 at 13:11 UTC
This is why you should always code with `strict` and `warnings`. It saves you (and us) time. Please turn warnings on and try your code again. _____________________________________________________ Jeff `japhy` Pinyan, P.L., P.M., P.O.D, X.S.: Perl, regex, and `perl` hacker How can we ever be the sold short or the cheated, we who for every service have long ago been overpaid? ~~ Meister Eckhart	[reply]
Re: M"anything" by herveus (Prior) on Aug 06, 2004 at 13:16 UTC
Howdy! `perl -Mstrict -Mwarnings -MO=Deparse -e 'print M"xxxx";' Name "main::M" used only once: possible typo at -e line 1. print M 'xxxx'; -e syntax OK` [download] ...or, in other words, the same thing that 'print STDOUT "xxxx"' does modulo the specific filehandle...what do you expect to happen when you print to the filehandle M? Is it open? Is it writable? yours, Michael	[reply] [d/l]
Re: M"anything" by Limbic~Region (Chancellor) on Aug 06, 2004 at 13:27 UTC
cjkim, There are two possibilities that I can think of: M is a filehandle M should have been a little m In the first case, `print M "foo"` would have printed "foo" to the file that M was opened to. It does not make any sense by itself (without the print), so it is very unlikely that this is what you mean. In the second case, it is used to change the delimiters of a regex. Typically used to get rid of the leaning toothpick problem. `print "matched" if /\/foo\/bar\/index\.html/; # vs print "matched if m"foo/bar/index\.html";` [download] Cheers - L~R	[reply] [d/l] [select]